of detroit



Patentcd Mar. 13, 1923.

UNITED STATES PATENT OFFICE.

FRANK J. DRUAR, F DETROIT. MICHIGAN. ASSIGNOR TO PACKARD MOTOR CAR COMPANY, OF DETROIT. MICHIGAN. A CORPORATION OF MICHIGAN.

spams SHACKLE on THE LIKE.

Application filed April 9,

'readilyapplied to the bolt of the shackle for distributing lubricant to the radially. ex tended bearing surfaces between the shackle and the' relatively: ni'owable-part. to wh ch it 'mey'beconncctedlsuclmas-thempring eye or -iA iiother object of the-jn'vention -is .to; pro;

20 vitle a picking ofiakiform whieh renders it.

capable of beingfsciirelyntctaineil in. its .56 4; z for hrevntin'gqthe tSbfiPQjiOfnOlL {rpm the joint'"aroundi-.-the'i-aitl-mlubrieanta fhdlng;

n ieinsi L t-I iwumad a: :.-;;mii ,it fitflho'tlier ohjectiofithe invent ng; tgmm vifle bushin srlydtwben thiboltgnd b -Kg; niilpted to hefcnneded thereto jw'lthlh 1 4 wfiififrable'mbq-eatij insertion agnd; -rem ovl,; Ahbther objectiof the. invenupnusto. n tine a comtrucciomimmhia,theulg =lta, is proyided with a retainingqrtoom, Qi ;t l e, "aching whicln is adapted-tmglose theuo nt Green-the giiringzeyeaor milsassoc ated therwic ii-in srthei'otl erire ativglyg p qteg iaitjivherehylfdcilityiimmanuiactn nq'oflthe pal-'ldng retaining; means. is! o tained. r ng ivli'rehy lt' ls lfentlprttdipOSsililt'..lp1 lran'. bfiking into'elbsewcnhtact'with iheqnpos ng sili faEe'sZ-"df th hpartsf .iitlioscmiu nt-grig". l tls'if'etlflbbloseudni hi1: 5. -3,... With these objects and others in menthe iii t flt i'o'n" is'jqmhod'itiib in prefrrahlc ltlJ'ID- in thb "ciinst rn'ction'iamiln arraignment here I ll'fftt' 'iiflshrihedlandiilliistmtcd in themqqtn p'a'flyitig dra'wiirgsyin-:hioh-.-..- 'Fip. l'is-ii 'vi'tiralsection. partly in vh-vation. showing the invention applied cnihoilierl in a vOflSllllCtlOfl vapahhof application to either a shackle llStll at the [will end of the rear spring of a motor rchirh r one employed at the front end of lln' front spring.

1919. Serial No. 288,672.

Fig. 2 is a similar view showing the invention applied to a slnn-klc employed at the l'call' ll'lll of the rear spring; and

Fig. 3 is a detail side view of the lubricant retaining and [Coding means r-nnstitnting an important element of the invention.

ltel't'rrint to the drawings. indicates a hanger depending from the frame of a motor vehicle and connected to arms 11 of a sprin I shackle. These arms are provided with annular heads 12 and 13 of which the former is adapted to fit. upon and be clamped against the enlargcdcirc'ular head 13' of a bolt 14 which is pro'i irlerl with an outer flange l5 adapted to bear against thconter edge of the head 12. y The bolt extends through the sharkle and 'a't itsopp'os'it'e end is provided with a n'ut"16 adapted to bear against the onter snrfaceof the hc'acl'l3 whereby upon tightening"then it' the two"ar'ms="of' the sligi'ckle'a iedr'airn tou 'ard one-another. The

i is h can '1; mg: radial surface lot) ing retained therein. and such material is preferably graphite, although possibl other non-fluid lubricant may be utilize. The longitudinal bearing surfaces between the shackle and the bushings are adapted to he lubricated hy oil supplied through the bolt channels while the radial surfaces which are subject to wear are supplied with lubricant through the said retaining members I The joint between said disk and the ad oining flange and head of the bushing and shackle respectively. is adapted to be closed by an annular flexible parking 27 which is preferably of cork, and which is made wedgeshape axially of ,the inorder to provide a simple mode of securing the packing within the head of the shackle.

Mounted between the end flanges of the two bushings is a spring eyel 28 forming the end of a leaf spring of usualgconstruction (not herein shown). Consideredwith rela tion to the essential features ofithe invention, of course, instead of the spring eye,

some other partto b? pnfie ell eb ne' 1 wear on t iese nstantia such as the end of i .frarne member, may take the place of saidspring eyii, and in the lower half of theconstrn cftlo nfi lustrated n Fig; Pe -t r i' tal yi mn ab i s h i a-l iii; Eh

l iegm. fl enztor. tact grit g and em 7 r twfl eceiye the" turned ,e'rid W939i eta t eiw' ii ie t- 131a t rlrange ent. :lso thentwg hg'lts rtiiil fiyiii are of di eren WQSttHfitlPt}, Millagr t dnia I Wis i k-w The Wi s 3 1 (I in .Eigi re 2 i are of substantiallfcjo tinuouscylindrical form and'a llofthe heads '32 of the shackle arms engaged byfsaid bolts are split and provided with tightening screws 33.

Having thus described my invention what I claim and desire to secure by Letters Patent is 2- 1. In combination with a spring-shackle, a part pivotally connected thereto, means for feeding lubricant to the longitudinal bearing surfaces of said parts, and a member extended radially with respect to the ivot and havingmeans to retain and fe'edlu ricant to the radially projected surfaces of said parts.

2. In combination with'aspring shacklej-a bolt, a part pivotally connected to the shackle through said bolt, :1 bushing surrounding the bolt, means to feed lubricant to the bearln surfaces of said bolt and bushing. said ushing and shackle having radially extended ends and a perforated lubricant carryin washer interposed between the bearing sur aces'of said ends and bushings;

3. 'In combination" with a spring shackle. a part pivotally connected thereto, and an:- annular wedge-shaped packing material seated in one of said parts.

4. In combination with a springshaqkle;

a part-pivotally connected thereto,-means,;tor-

lubricating the longitudinal bearin Y curof flexible faces of said partsfa perforate annu ar-ilubric'ant carrying--washer-for lubricating,ra-

di y'extending surfaces of said parts and ,a.

closing saidwasher." a' m- I n; 51111 combination withi a 'springvsha'ckle part pi'votally conneoted lthereto -l a bqlt partpivotally cdnhetedtheretona conngct f 7mg b0lt, bus hings between said bolt grydg s kIe a'ced apgrt atitheiriinneriorttlsi'iiind at gr ,itngea euteii midshm'igmbp,

i gg-perf tm a of said tlttn anld fsaidishackilaiandlan 'ifiilai packin' u remherus'urrounding and hdldiilgsaldkrmsheisioi i: illi-u bui ivoaq 2i ,"-7:l,I'n coinliinationlqviith a. spring shae de; t at fpivot'ally connected heretmim cqnd iii-"Craig bolt'fo'n saidqiarts;lsaidibolhihfifi 'l flh eh large'd hea'd ationeiendi'thereofiiexten Y mg over; the 'end of said pivotallyi'cognecte 'pa t','-fi"l'nbficarit'retainingimember ma ag adjacent the ratli'allsunfacemflsaidihe ad ia, d a packir'i'gmount'ed inl'sai d headibeyjqnd t e, outer edge of the said lubricant cii ilfliflill '"iill) lint: l 'oi h- :g d} {fil] 81 In combiner/Loni with a .spring. (shackle, a b'elt', a FPTiITg GYBt al bushinghaving-a e,- dialflafig etbne 'endrthei eof landiinterpose, between said sprh gr eye: and .thehbglt sai bolt having an enlargedw'adial ihe'ad at' pne end thereof opposing-said fiange iof the bushing, a lubricant carrying annulari rnem bcr surrounding the bolt between saidphead and flange and a'packing of flexible material mounted in the head be 0nd saidmemher and bearing against sai flange. y 9. In combination with a spring shackle,

I P I is parate bushings between said boltaniLPQIl'e' .1

'will;afiinge sndnhibsann ;m ns i m flanges andsmdshackla'io old HQ in a spring eye, a connecting bolt having an enlarged radial head, an opposing part having a similar radial portion forming a joint between them and a flexible packing bearing directly against said opposed radial surfaces of the relative parts.

10. In combination with a spring shackle. a spring eye, a connecting bolt, a radially enlarged head on said bolt on one end thereof having a flat bearing surface, an opposing radial part having a corresponding flat bearing surface, an annular groove formed in said radial part of said head and a flexible annular packing seated in said groove and having a bearing against said opposing part, to close the joint between the same and the head.

11. In combination with a spring shackle, a. spring eye, a connecting bolt amid bolt having a radial between said eye and bolt having a radial flange opposing said radial head of the bolt, said head having an annular groove therein and a flexible annular packing seated in said groove and bearing on said flange.

12. In combination with a spring shackle. a spring eye, a connecting bolt. having a radially enlarged head at one end. a washer between said eye and bolt having a radial flange opposing said ing a joint between said parts, said hea having an annular groove and an annular cork packing seated in said groove and bear-- in" against said bushing flange to close the joint between said flange and head.

In testimony whereof I allix my signature.

FRANK J. DRUAR.

v enlarged head. a bushing 10 radial head and form- 

